#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int R, C;
char grid[3005][3005];
ll ans = 0, numI[3005];
int main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
cin >> R >> C;
for (int i = 1; i <= R; ++i){
for (int j = 1; j <= C; ++j){
cin >> grid[i][j];
}
}
for (int i = R; i >= 1; --i){
ll ocnt = 0;
for (int j = C; j >= 1; --j){
if (grid[i][j] == 'O') ocnt++;
if (grid[i][j] == 'I') numI[j]++;
if (grid[i][j] == 'J') ans += ocnt * numI[j];
}
}
cout << ans << '\n';
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
376 KB |
Output is correct |
| 2 |
Correct |
5 ms |
376 KB |
Output is correct |
| 3 |
Correct |
5 ms |
376 KB |
Output is correct |
| 4 |
Correct |
4 ms |
380 KB |
Output is correct |
| 5 |
Correct |
5 ms |
636 KB |
Output is correct |
| 6 |
Correct |
5 ms |
632 KB |
Output is correct |
| 7 |
Correct |
5 ms |
632 KB |
Output is correct |
| 8 |
Correct |
6 ms |
632 KB |
Output is correct |
| 9 |
Correct |
5 ms |
632 KB |
Output is correct |
| 10 |
Correct |
5 ms |
632 KB |
Output is correct |
| 11 |
Correct |
5 ms |
632 KB |
Output is correct |
| 12 |
Correct |
5 ms |
632 KB |
Output is correct |
| 13 |
Correct |
5 ms |
636 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
376 KB |
Output is correct |
| 2 |
Correct |
5 ms |
376 KB |
Output is correct |
| 3 |
Correct |
5 ms |
376 KB |
Output is correct |
| 4 |
Correct |
4 ms |
380 KB |
Output is correct |
| 5 |
Correct |
5 ms |
636 KB |
Output is correct |
| 6 |
Correct |
5 ms |
632 KB |
Output is correct |
| 7 |
Correct |
5 ms |
632 KB |
Output is correct |
| 8 |
Correct |
6 ms |
632 KB |
Output is correct |
| 9 |
Correct |
5 ms |
632 KB |
Output is correct |
| 10 |
Correct |
5 ms |
632 KB |
Output is correct |
| 11 |
Correct |
5 ms |
632 KB |
Output is correct |
| 12 |
Correct |
5 ms |
632 KB |
Output is correct |
| 13 |
Correct |
5 ms |
636 KB |
Output is correct |
| 14 |
Correct |
12 ms |
1788 KB |
Output is correct |
| 15 |
Correct |
5 ms |
1656 KB |
Output is correct |
| 16 |
Correct |
7 ms |
1144 KB |
Output is correct |
| 17 |
Correct |
5 ms |
376 KB |
Output is correct |
| 18 |
Correct |
10 ms |
1784 KB |
Output is correct |
| 19 |
Correct |
9 ms |
1784 KB |
Output is correct |
| 20 |
Correct |
10 ms |
1784 KB |
Output is correct |
| 21 |
Correct |
10 ms |
1784 KB |
Output is correct |
| 22 |
Correct |
9 ms |
1784 KB |
Output is correct |
| 23 |
Correct |
8 ms |
1784 KB |
Output is correct |
| 24 |
Correct |
10 ms |
1784 KB |
Output is correct |
| 25 |
Correct |
9 ms |
1788 KB |
Output is correct |
| 26 |
Correct |
9 ms |
1784 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
376 KB |
Output is correct |
| 2 |
Correct |
5 ms |
376 KB |
Output is correct |
| 3 |
Correct |
5 ms |
376 KB |
Output is correct |
| 4 |
Correct |
4 ms |
380 KB |
Output is correct |
| 5 |
Correct |
5 ms |
636 KB |
Output is correct |
| 6 |
Correct |
5 ms |
632 KB |
Output is correct |
| 7 |
Correct |
5 ms |
632 KB |
Output is correct |
| 8 |
Correct |
6 ms |
632 KB |
Output is correct |
| 9 |
Correct |
5 ms |
632 KB |
Output is correct |
| 10 |
Correct |
5 ms |
632 KB |
Output is correct |
| 11 |
Correct |
5 ms |
632 KB |
Output is correct |
| 12 |
Correct |
5 ms |
632 KB |
Output is correct |
| 13 |
Correct |
5 ms |
636 KB |
Output is correct |
| 14 |
Correct |
12 ms |
1788 KB |
Output is correct |
| 15 |
Correct |
5 ms |
1656 KB |
Output is correct |
| 16 |
Correct |
7 ms |
1144 KB |
Output is correct |
| 17 |
Correct |
5 ms |
376 KB |
Output is correct |
| 18 |
Correct |
10 ms |
1784 KB |
Output is correct |
| 19 |
Correct |
9 ms |
1784 KB |
Output is correct |
| 20 |
Correct |
10 ms |
1784 KB |
Output is correct |
| 21 |
Correct |
10 ms |
1784 KB |
Output is correct |
| 22 |
Correct |
9 ms |
1784 KB |
Output is correct |
| 23 |
Correct |
8 ms |
1784 KB |
Output is correct |
| 24 |
Correct |
10 ms |
1784 KB |
Output is correct |
| 25 |
Correct |
9 ms |
1788 KB |
Output is correct |
| 26 |
Correct |
9 ms |
1784 KB |
Output is correct |
| 27 |
Correct |
188 ms |
9208 KB |
Output is correct |
| 28 |
Correct |
8 ms |
7160 KB |
Output is correct |
| 29 |
Correct |
15 ms |
1144 KB |
Output is correct |
| 30 |
Correct |
5 ms |
376 KB |
Output is correct |
| 31 |
Correct |
138 ms |
7776 KB |
Output is correct |
| 32 |
Correct |
142 ms |
9208 KB |
Output is correct |
| 33 |
Correct |
131 ms |
9208 KB |
Output is correct |
| 34 |
Correct |
162 ms |
9016 KB |
Output is correct |
| 35 |
Correct |
141 ms |
9208 KB |
Output is correct |
| 36 |
Correct |
133 ms |
9208 KB |
Output is correct |
| 37 |
Correct |
189 ms |
9208 KB |
Output is correct |
| 38 |
Correct |
100 ms |
7672 KB |
Output is correct |
| 39 |
Correct |
97 ms |
7672 KB |
Output is correct |
